Consolidated Statement of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Apr. 02, 2022	Apr. 03, 2021
Revenues
Revenues	$ 11,818	$ 9,906
Costs and operating expenses:
Selling, general and administrative expenses	2,277	1,826
Research and development expenses	364	320
Restructuring and other costs	2	14
Total costs and operating expenses	8,997	6,857
Operating income	2,821	3,049
Interest income	18	12
Interest expense	(136)	(125)
Other income/(expense)	(163)	(183)
Income before income taxes	2,540	2,753
Provision for income taxes	(301)	(416)
Equity in earnings/(losses) of unconsolidated entities	(19)	0
Net income	2,220	2,337
Less: net income attributable to noncontrolling interests and redeemable noncontrolling interest	5	0
Net income	$ 2,215	$ 2,337
Earnings per share attributable to Thermo Fisher Scientific Inc.
Basic (in dollars per share)	$ 5.66	$ 5.93
Diluted (in dollars per share)	$ 5.61	$ 5.88
Weighted average shares
Basic (in shares)	392	394
Diluted (in shares)	395	397
Product [Member]
Revenues
Revenues	$ 8,017	$ 7,856
Costs and operating expenses:
Cost of revenues	3,555	3,327
Service [Member]
Revenues
Revenues	3,801	2,050
Costs and operating expenses:
Cost of revenues	$ 2,799	$ 1,370